Gas-engine starting device.



F. W. ROWBOTTOM.

Patented Nov. 12, 1918.

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GAS ENGINE STARTING DEVICE. APPLICATION FILED um. 19. new.

1 ,28,46 1. mama Nov. 12, 1918.

NV W)? 29 39 '70 j z ykfif WITNESSES FREDERICK WILLIAM EG'WBO'ITOM, FBANKER, MENNESOTA.

GAS-ENGINE STARTING DEVICE.

Snecifioation of Eletters Eatent.

Patented lion. 312),

provides for the movement of the bar .l fidel ltilo implication filedJanuary, 19, will. Eerie-,1 1% o. 212K121 1.55 a [com it may concern: Beit known that I Fnnncnron W. liownorrorr, a citizen of the UnitedStates, residing at Earlier, in the county of Koochiching and State ofMinnesota, have invented new and useful Improvements in Gas-EngineStarting Devices, of which the following is a specification.

This invention relates to a starting device for a gas engine, and theobject is to provide manually operated means of improved constructionfor use on engines of large'capacity for producing the initial explosionafter the engine has been primed and the charge has been compressed.

The invention consists in providing manually operated means of novelconstruction acting in conjunction with the automati cally operatingignition devices of substantially the form now employed. I

lln he drawingsz' Fi re 1 is a'view in elevation showing 7 the eviceapplied to an engine cylinder.

oil

Fig. 2 is a top plan view oi the construction shown in Fig.- 1.

iii s. 3 and 4t are detached views in perspect ve of certain elements orthe device, described below.

Fig. 5 is a section through the mounting and guiding means for thereciprocable bar, the bar being shown in Fig. 3 and a portion of theguiding means in Fig. i.

Fig. 6 is a' perspective view showing a portion of the contact-makingmechanism controlled by a trigger mounted on an arm of the reciprocablebar.

Referring to the drawings in detail, a cylinder is designated 10 and theoscillating arm/controlling the operation of the ignb tioii mechanism inthe well known manner is shown at 14 being mounted at 15. Sue

side of a circuit is designated 16 and leads from a battery 17 throughany suitable insulating connection 20. This arm 14: carries a pivotallymounted latch member or the like designated 21 cooperating with a trigg'er described below and constituting a part plication is based.

A hand lever 25 is pivotally a 26 and has pivotal connection at 2'? witha bar 28 slotted longitudinally as shown at 29% This slotted portion isengaged by a roller 30 carried on a bolt or the like 31 having: an

elongated head. 32 and is cgll'OVldiGti with nut 33 on the opposite enThe roller 3Q ignition device.

of the construction on which the present at)v mounted aiz' saidoscillating sion, said means 28 and acts as a guiding member. The holi;31 is mounted in a con having about the proportions shown and beingsecured in any suitable manner. The head 3:2 of the bolt passes througha slot 35 in the box and is given a quarter turn for the purpose ofproducing proper engagement.

A bar 28. carries a frame or the like designated 37, the frame beingsecured by means of bolts 38, and including ans-rm 39 having a beveledend 40,'and a plurality of fork members 42 extending parallelly andserving to pivotally mount a trigger i i which is under the controlof acoiled spring 45. This trigger includes an offset orhook portion to, andan offset portion 4:? constitut in a stop.

he oscillating member constituting a portion of the contact making"mechanism is designated 48 and includes a plurality oi? arms 49 and50,arrn 49 being connected with a coiled spring 51, and the opnosite armbe ing engaged by the trigger n when the englue is to be started by theoperation oi the In starting the engine after the latter has been primedand aiter compression has been secured, and the switch (not shown)controlling the electric circuit has been thrown in, thelever 25 isoperated, the trigger 44- being in the position shown in Fig. 2, and arm50 ofthe ignition mechanism is operated for producing a spark for theinitial ill explosion. It will be understood that am 28 is returned tooperative position, with the trigger 44: on the proper side of arm 50 toeffect the operation thereof, this return movement of bar 28 beingpermitted in view oii'thepivotal and resilient mounting of trigger 44.Should the beveled'end 40 accidentally come into engagement, it willonly be a' slight engagement and will not prevent the required movementof the elements.

What is claimed is;

1. In a device oi the class described, the

combination with. an oscillating element iorming' a portion of theignition mechanism of a gas engine, means for operating member, andadditional means engagingand operating the oscillating-n'i' mber forproducing last mentioned comprising a reciprocable bar, and a pivotallyand re siiiently mounted trigger carried thereby.

. 2, is a'devico oi the class described, a re the initialexplociprocable bar, means for guiding the movement of the ignitionmechanism of a gas engine, said trigger engaging the oscillatingelement, and means for engaging said oscillating member during thecontinued opera tion of the engine.

3. In 'a device of the class described, a reciprocable bar slottedlongitudinally, means for operating said bar, a frame carried by the barand including a longitudinally extending arm at one side of the frame, aplurality of longitudinally extending arms at the other side of theframe, a

trigger ivotally and resiliently mounted be:

tween t e arms last named, an oscillating member comprising an elementof the ignition mechanism of a gas engine, said member being engaged bythe trigger to produce the explosion of the initial charge, and meansfor engaging the oscillatingmember during the continued operation of theen- DS. In testimony whereof I afiix my signature.

FREDERICK WILLIAM ROWBU'ITOM.

Copies of this patent may he obtained for five cents each, by addressingthe "commissioner of Patenti. Washington, D. G.

